Fewer components mean lower cost and less power required
If £25 wasn't good enough value for a fully functioning computer, the Raspberry Pi Model A has gone on sale for just £20. The Model A with 256MB of memory compared to the 512MB of the Model B, a single USB socket and no network socket.
It is possible to run the Raspberry Pi using a battery pack that provides the standard 5V through the microUSB socket. He did warn that a battery pack of four AA batteries is not suitable because the voltage would be too high for the Raspberry Pi (6V rather than 5V)
The Model A is still suitable for use as a media centre as wireless can be added with a USB adapter, although a USB hub will be needed to connect more than one device to the Pi.
One Raspberry Pi user posted instructions this week for connecting a Nintendo Wii controller to a Raspbery Pi. This could be the
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